#encoding:utf-8 import socket import htmllib,formatter def open_socket(host,servname):     s=socket.socket(socket.AF_INET,socket.SOCK_STREAM)     port=socket.getservbyname(servname)     s.connect((host,port))     return s host='' host=input('请输入网址\n') mysocket=open_socket(host,'http') message='GET http://%s/\n\n'%(host,) mysocket.send(message) file=mysocket.makefile() htmldata=file.read() file.close() parser=htmllib.HTMLParser(formatter.NullFormatter())  parser.feed(htmldata) print '\n'.join(parser.anchorlist) parser.close()